High impact information on cob

• This is particularly significant in view of the involvement of 14 in the splicing of both cob and oxi3 (coding for cytochrome oxidase subunit 1) mRNA precursors in S. cerevisiae [1].
• The two introns are, however, located at sites different from those of introns in the cob genes of A. nidulans and S. cerevisiae (which contain highly homologous introns at the same site within the gene) [2].
• The polypeptide encoded by the exons shows extensive homology with the cob proteins of Aspergillus nidulans and Saccharomyces cerevisiae (79% and 60%, respectively) [2].
• Four short DNA sequences, two of which are in the region defined by box9 and box2 mutations in the cob gene of yeast, are conserved in cobA and certain yeast introns [3].
• Regions of the translated open reading frames of cobA and the third intron of the cob gene in yeast show high amino acid homology [3].

Biological context of cob

• Identification, classification and phylogeny of the Aspergillus section Nigri inferred from mitochondrial cytochrome b gene [4].

Associations of cob with chemical compounds

• Among the several carbon sources tested, higher xylanase production was verified in xylan, xylose, sugar-cane bagasse, wheat bran and corn cob cultures, respectively [5].
• A. flavus was isolated more frequently from maize shelled immediately after harvest than from that kept on the cob until it could be dried, and from more samples from the Brunca Region than from the Huetar Atlantic Region [6].

Analytical, diagnostic and therapeutic context of cob

• The partial mitochondrial cytochrome b gene from 32 strains of 12 species belonging to Aspergillus section Nigri was amplified by the polymerase chain reaction and sequenced directly [4].
• The observations of conidial wall texture by SEM (Scanning Electron Microscopy) supported the relationships derived from the cytochrome b gene [7].

References